inexcusable

C.S. Lewis has made the excellent point that there is a huge difference between forgiving and excusing; in fact, he says they might be opposites. His view was that once the excusable elements have been subracted from the equation, i.e. after the offense has been reduced down to the inexcusable, that’s the part that needs forgiveness.

“To be a Christian means to forgive the inexcusable, because God has forgiven the inexcusable in you.” C.S. Lewis
(Essay On Forgiveness – Macmillan Publishing Company, Inc., N.Y. 1960)